-- in.journal --
tag used-txn
tag used-posting
tag used-comment
tag unused
tag twice
tag twice

2026-01-15 Shopping ; used-txn:
  Expenses:Food   $10 ; used-posting:
  Assets:Cash

; used-comment:

-- expect --
in.journal:4:1: unused-tag: unused tag: unused
in.journal:5:1: unused-tag: unused tag: twice
in.journal:6:1: unused-tag: unused tag: twice